Evermann and Nichols — Fishes of Crab Creek, Washington. 93 



The list is as follows: 



1. Catostomus catostomus (Forster). 



LOXli-NOSED SUCKER. 



Head 4.5 in length; depth 4.4; depth of caudal peduncle 2.9 in head; 

 eye 6.5; snout 2.2; interorhital width 2.4; dorsal 12; anal 7; scales 18- 

 110-13, between occiput and dorsal about 60. 



Width of mouth about 2.8 in length of head; upper lip with about 4 

 rows -of papilla'; lower lip with two rows between apex of cleft and 

 border of lip, and 4 or 5 rows on its lobes. 



A'entrals 1.3 in head; pectoral 1.2; origin of dorsal slightly nearer tip 

 of snout than base of caudal; anal reaching past base of outer caudal ray; 

 lateral line complete. 



Color (in life). — Above dull yellowish, irregularly blotched with darker; 

 belly white; fins russet brown. 



Only one small example (6.3 inches long) was obtained. It agrees 

 perfectly with young of this species from other places. 



2. Leuciscus balteatus (Richardson). 



Common, but only a few young individuals retained. 



3. Salmo eremogenes Evermann & Nichols, sp. nov. 



Type, No. 62060, U. 8. N. M., a siaecimen 10 inches long, obtained by 

 R. Lhamon, in Crab Creek at Rocky Ford, north of Ritzville, Washing- 

 ton, July 30, 1908. 



Head 4.3 in length; depth 3.6; eye 5.2 in head; snout 4.2; maxillary 

 1.95; mandible 1.6; least depth of caudal peduncle 2.5; longest dorsal ray 

 1.75; longest anal ray 1.9; ventral 1.8; pectoral 1.6; adipose fin 5; cau- 

 dal 1.4; dorsal rays 11; anal 10; pectoral 15; ventral 9; scales 32-165-32; 

 gillrakers 19; branchiostegals 12 or 13. Teeth on jaws, palatines and 

 vomer, and large teeth on tongue. 



Body robust, the back rather strongly elevated; head large, snout blunt, 

 lower jaw slightly projecting ; maxillary long and rather broad, its mid- 

 dle under pupil ; eye large ; caudal peduncle stout. 



Color (in life). — Above dark olive; caudal peduncle with numerous 

 close-set roundish black spots of moderate size, these spots becoming less 

 numerous anteriorly, there being only a few in front of dorsal and none 

 on head ; dorsal and caudal fins with black spots, other fins immaculate, 

 the spots on anterior part of body more nearly round than those on cau- 

 dal peduncle; cheek and opercle olive yellowish, tinged with pink; lower 

 part of side from base of pectoral to anal more or less pink, the color 

 showing a little on pectoral and more on ventrals ; ventral surface whitish ; 

 pectoral green ; anal olive with more or less reddish tint ; ventrals more or 

 less olive, tinged to a considerable extent with the pink of the flanks ; 

 red on lower jaw quite distinct. 



In spirits the pink or rosy of sides and the red on lower jaw have faded. 



A cotype, No. 5370, Bureau of Fisheries, 7 inches long, and taken at 

 same place, agrees essentially with the type. Scales about 175. 



